CVE-2022-41861

Publication date 14 December 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in freeradius. A malicious RADIUS client or home server can send a malformed abinary attribute which can cause the server to crash.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
freeradius	22.10 kinetic	Not affected
	22.04 LTS jammy	Fixed 3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.1
	20.04 LTS focal	Fixed 3.0.20+dfsg-3ubuntu0.2
	18.04 LTS bionic	Fixed 3.0.16+dfsg-1ubuntu3.2
	16.04 LTS xenial	Fixed 2.2.8+dfsg-0.1ubuntu0.1+esm1
	14.04 LTS trusty	Ignored end of standard support

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
freeradius	Upstream: 0ec2b39

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-5785-1
FreeRADIUS vulnerabilities
4 January 2023